Manufacture of ornamental chains



(No Model.)

D. D; CODDING.

MANUFACTURE OF ORNAMBNTAL CHAINS.

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.UNITED STATES PATENT OFFICE.

DAVID D. OODDING, OF NORTH ATTLEBOROUGH, MASSACHUSETTS.

MANUFACTURE OF ORNAMENTAL CHAINS.

SPECIFICATION forming part of Letters Patent No. 279,340, dated June 12, 1883.

Application filed January 8,1883. (No model.)

To all whom it may concern.-

Be it known that I, DAVID D. CODDING, of North Attleborough, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in the Manufacture of J ewelry, and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to the manufacture of IO jewelry, and more particularly to the construction of ornamental chains and bracelets of that class which are composed of laterally-set tubes placed closely together and connected by wire loops protruding from the ends of the tubes and interlocked with adj acent loops. A chain of this class has been patented wherein the tubes are connected by long loops of wire placed loosely in and passing through the tubes, a small portion of each loop protruding from the ends of the tube; and the object of my invention is to greatly lessen the cost of this chain by a peculiar construction of the links.

My invention consists in a chain or bracelet formed of laterally-set tubes, two short wire loops for each tube, and an independent device for connecting the inner ends of such loops within the tubes.

I have shown in the drawings various Ways of carrying out my invention.

Figure 1 is a plan view. Fig. 2 is a section through one of the tubes. Fig. 3 is a modification. Fig. 4shows the inner tube and loops. Fig. 5 is another modification. 4

A A represent short lengths of tubular wire, of plain or ornamental form and of any desired shape in cross section. These tubes are set closely together and are connected by loops 1 1 of wire, as shown in Fig. 1. Each loop 1 is swaged into the end of a short brass tube, 2, Fig. 4. The tube 2 is inserted into the tube A, so that the loops 1 protrude from the ends of such tube. The loops are then bent back and passed through the next loop, which isin turnbent and threaded through the succeeding loop, forming the chain shown in Fig. 1.

In Fig. 3 I have shown amodification wherein two short tubes, 2 2, are inserted into the tube A, one at eachuend, each loop being fastened to one'of them. Then all the tubes A are in place and fastened together by theloops, each loop is securely held in place by the adjacent loops, which draw upon it equally from opposite sides.

The described chain can be formed of any desired length, and can be cut up into pieces of the proper size for bracelets, shorter chains, 86C.

The manner of securing the loops by swaging to a short tube offers many advantages over the use of a single loop passing entirely through the outer tube, which I am aware has been patented. There is a great saving of the valuable gold or plated wire, since the greater part of the concealed portion is formed of the cheap brass tubing.

Although I prefer to connect the inner ends of the loops to tubes 2 2 by swaging, yet I may use solder for that purpose, inwhich casethe tubes might be dispensed with and solid pieces to the ends of which the wire loops are soldered substituted for them, as shown in Fig. 5.

Having described my invention, I claim 7 An ornamental chain composed of laterally set tubes placed closely together, and connected by interlocking loops of wire formed of precious or plated base metal, which loops protrude from opposite ends of the tubes and are secured within them by a connection of base metal, the device being so constructed for the reason and purpose set forth.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses.

n. n. oonnmc.

Witnesses:

H. H. GURTIs, FnEn. B. BYRAM. 

